Spark-arrester.



E. A. CAREY.

SPARK ARRESTER. APPLICATION FILED OUT. 13

Patented June 16,1914.

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COLUMBIA PLANDGRAPH cm, WASHINGTON. D. c.

E. A. CAREY. SPARK ARRESTER. APPLICATION FILED 00113, 1913.

1,100,224, Patented June 16, 1914.

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a I f .i 1 6 a I g E J Wi la wows ELMER A. CAREY, 0F SAZPULPA, OKLAHOMA.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented June 16, 1914.

Application filed October 13, 1913 Serial No. 794,935.

T 0 (ZZZ whom it may concern Be it known that I, ELMER A. CAREY, a citizen of the United States, residing at Sapulpa, in the county of Greek and State of Oklahoma, have invented certain new and useful Improvements in Spark-Arresters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in spark arresters and resides in the provision of a spark arrester particularly designed for use within the smoke stack of a locomotive.

An important object of the invention is to provide a spark arrester such as described which will prevent the escape of sparks, and cinders from the smoke stack without interfering with the free draft and discharge of the smoke therefrom thus eliminating all danger of fire and great loss of property situated along the railway track as well as the objectionable feature of having cinders flying into the windows of the coaches of the train.

A further object of importance is to provide a spark arrester such as described which is simple as to construction and arrangement of parts, efficient and reliable in its operation and cheap to manufacture.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in the following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

With reference to the drawings, wherein, I have illustrated the preferred embodiment of my invention as it is reduced to practice, and throughout the several views of which, similar reference numerals designate corresponding parts: Figure 1 is a side elevation illustrating the device in assembled operative position, Fig. 2 is a vertical sectional view, Fig. 3 is a cross sectional view taken on line 33 of Fig. 2 illustrating the screen in closed position, Fig. 4 is a detail perspective View of the screen, and Fig. 5 is a detail sectional view of the hinge connection for the screen and smoke stack.

Referring to the drawings by numerals, 1

designates as an entirety a cylindrical smoke stack that is secured in the usual manner to the locomotive designated A as an entirety. Formed in this stack 1 adjacent the upper terminal thereof, is a circular opening 2 the purpose of which will be later described. The lower side of this opening 2, that is the stack at this point, is bent inwardly and angularly with relation to the vertical axis of the stack to form a deflecting flange 3. A pipe 4 is suitably secured in a vertical position relative to the stack 1 at its upper terminal within the opening 2 in the stack. The upper terminal of this pipe 4 is enlarged as at 5 and is adapted to receive the cinders from the stack 1 which are deflected into the enlarged portion 5 of the pipe 4 by a screen designated 6 which will be herein after more fully described. The screen 6 is disposed within the stack 1 and formed concavo-convex, the concaved" face being disposed inwardly. This screen 6 is supported in the stack by means of a supporting frame 7 to which the screen is secured, that is pivotally secured at its lower terminal with in a hinged bearing 8 that is secured to the lower inner face of the stack 1 in diametrically opposed relation to the opening 2 therein. The screen 6 is normally disposed so that its upper terminal is normally in engagement with a downwardly extending flange 9 that is formed integrally with the upper terminal of the pipe 4, and completely covers the area of the stack. The upper terminal of the screen 6 is disposed slightly within the enlarged portion 5 of the pipe 4 owing to the fact that the downwardly extending flange 9 is formed in spaced relation to the extreme outer terminal of the enlarged portion 5 of the pipe 4, thus the cinders in passing from the locomotive the box to the stack in engaging the screen 6 are deflected upwardly so that they are disposed within the upper terminal of the pipe 4, that is. the enlarged portion 5 thereof and are out of the way of the forced draft within the stack 1 so that they are free to fall downwardly through the pipe 4 where they collect at the lower terminal thereof at a valve 10 disposed at that point. This valve is for the. purpose of discharging the contents of the pipe along the side of the track when so desired. The deflecting flange 3 at the lower side of the opening 2 in the stack prevents the cinders from falling back into the stack as they are deflected into the enlarged portion 5 of the pipe 4 and downwardly in the pipe.

The pipe 4 is extended downwardly around the boiler of the locomotive A so that its lower terminal is disposed below the lower face of the boiler and in a position so that the contents of the pipe may be dumped along the track as will be clearly seen with reference to Fig. 1 in the drawings.

In some instances it may be desired to operate the screen 6 so that the cinders will be permitted to flow from the smoke stack and in this connection there has been provided a rod 11 which is connected at one terminal as at 12 to the upper terminal of the screen 6 and at its other terminal not shown with a suitable lever not shown that is mounted within the cab of the locomotive. The rod 11 is slidably mounted within an opening 13 formed in the enlarged portion 5 of the pipe 4. Thus it will be seen that the engineer or fireman may operate the rod 11 so that the screen 6 is pulled to a position as illustrated in Fig. 2 that is a closed position or moved into an open position so that the cinders will pass from the smoke stack 1.

It is apparent with reference to the foregoing description and accompanying drawings that a spark arrester is provided which will efliciently arrest the sparks and dispose them within a pipe so that they may be discharged at will along the road.

In reduction to practice, I have found that the form of my invention, illustrated in the drawings and referred to in the above description, as in preferred embodiment, is the most efficient and practical; yet realizing that the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention, as defined in the appended claims.

What is claimed is 1. The combination with a smoke stack of a locomotive of a screen mounted within said stack and pivoted adjacent the lower portion thereof, said screen being concavoconvex and normally disposed in angular relation to the vertical axis of said stack, said stack having an opening formed therein adjacent its upper portion adapted to receive the upper terminal of the screen, a downwardly extending pipe operatively connected with said opening, a valve disposed at the lower portion of said pipe,

means for moving said screen into and out of operatlve position, means carried by said pipe adapted for engagement with the upper portion of said screen to limit the movement of said screen in one direction and dispose 1t in inclined operative position and means formed integral with the stack adjacent the lower portion of said opening for preventing the cinders from falling back into the stack.

2. The combination with a locomotive smoke stack having an opening therein adj acent the upper portion thereof; of a screen pivotally mounted therein, a vertically disposed pipe communicating with said opening at its upper portion, a. valve carried by the lower portion of said pipe, said pipe enlarged adjacent its upper portion, said screen adapted to be disposed in inclined operative position so that its upper portion is extended within the enlarged portion of the pipe, means forlimiting themovcment of said screen within the pipe formed integrally with the enlarged portion of said pipe, said screen being concavo-convex and adapted to completely cover the area of said stack when in closed position, means for moving said screen out of closed position to permit the cinders to pass from the stack, and an inwardly extending deflector flange disposed angularly with relation to the vertical axis of said stack and formed integrally with the stack adjacent the lower portion of said opening.

3. The combination with the stack of a locomotive of a concavo-convex screen, pivotally mounted within the said stack intermediate the ends thereof, said stack having an opening formed therein adjacent its upper portion and in diametrically opposed relation to the pivoted terminal of the screen, a vertically disposed pipe communieating at its upper portion with the opening in the stack, a valve carried by the lower portion of said pipe, said pipe enlarged adjacent its upper portion,said screen normally disposed in inclined position so that it completely covers the area of the pipe and that its upper portion is disposed within the enlarged portion of the pipe, means for moving said screen into and out of operative position comprising a rod secured to the upper portion of said screen, a downwardly extending flange carried by the upper portion of said pipe and adapted for engagement with the upper portion of said screen when in operative position and an inwardly and angularly extending flange formed integral with the stack adjacent the lower portion of said opening.

In testimony whereof I aflix my signature in presence of two witnesses.

ELMER A. CAREY. lVitnesses:

E. F. HYDE, W. L. MCEUEN.

Copies of this patent ma; be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

